Synthesis and surfactant properties of N-acylation compounds derived from hydrolysis degradation products of N-(\beta-cianoethyl)-\epsilon-caprolactam
作者:ANDREEA BONDAREV
DOI:10.3906/kim-0902-2
日期:——
N-acyl amino acids can be used as active surface agents in the detergents industry, as well as in the pharmaceutical industry and cosmetics. Properties of these compounds are superior to those of fatty acids soaps and they are not toxic to the environment and have low Kraft points, because of peptide bonds (CO-NH). Acylation at the nitrogen atom can be performed with good yields without catalysts, for strong nucleophilic derivatives. The synthesis of some derivatives of 4-azasebacic acid, which are hydrolysis degradation products from N-(\beta -cianoethyl)-\epsilon -caprolactam, has been described and the N-acylation processes for these compounds are also presented. The obtained products have been characterized using various methods: IR, UV-VIS, ^1H-NMR, ^13}C-NMR, elemental analysis, TLC, m.p. (Boethius), and in some cases refractive index. The most important surfactant properties of these N-acylated products were investigated using the surface tension method. The related thermodynamic parameters were also calculated.
N-酰基氨基酸可用作洗涤剂工业以及制药工业和化妆品中的活性表面活性剂。这些化合物的性质优于脂肪酸皂,对环境无毒,且由于肽键(CO-NH)的存在,其卡夫点较低。对于强亲核衍生物,可在氮原子上进行酰化反应,且无需催化剂,产率较高。已描述了4-氮杂琥珀酸的一些衍生物的合成,这些衍生物是N-(β-氰乙基)-ε-己内酰胺的水解降解产物,还介绍了这些化合物的N-酰化过程。使用各种方法对所得产物进行了表征:红外、紫外-可见、^1H-核磁共振、^13}C-核磁共振、元素分析、